using System;
using System.IO;
using Server;
using Server.Accounting;
using Server.Network;

namespace Server.RemoteAdmin
{
	public class RemoteAdminLogging
	{
		const string LogBaseDirectory = "Logs";
		const string LogSubDirectory = "RemoteAdmin";

		private static StreamWriter m_Output;
		private static bool m_Enabled = true;

		public static bool Enabled { get { return m_Enabled; } set { m_Enabled = value; } }

		public static StreamWriter Output { get { return m_Output; } }

		private static bool Initialized = false;
		public static void LazyInitialize()
		{
			if ( Initialized || !m_Enabled ) return;
			Initialized = true;

			if ( !Directory.Exists( LogBaseDirectory ) )
				Directory.CreateDirectory( LogBaseDirectory );

			string directory = Path.Combine( LogBaseDirectory, LogSubDirectory );

			if ( !Directory.Exists( directory ) )
				Directory.CreateDirectory( directory );

			try
			{
				m_Output = new StreamWriter( Path.Combine( directory, String.Format( LogSubDirectory + "{0}.log", DateTime.UtcNow.ToString( "yyyyMMdd" ) ) ), true );

				m_Output.AutoFlush = true;

				m_Output.WriteLine( "##############################" );
				m_Output.WriteLine( "Log started on {0}", DateTime.UtcNow );
				m_Output.WriteLine();
			}
			catch
			{
				Utility.PushColor( ConsoleColor.Red );
				Console.WriteLine( "RemoteAdminLogging: Failed to initialize LogWriter." );
				Utility.PopColor();
				m_Enabled = false;
			}
		}

		public static object Format( object o )
		{
			o = Commands.CommandLogging.Format( o );
			if ( o == null )
				return "(null)";

			return o;
		}

		public static void WriteLine( NetState state, string format, params object[] args )
		{
			for ( int i = 0; i < args.Length; i++ )
				args[i] = Commands.CommandLogging.Format( args[i] );

			WriteLine( state, String.Format( format, args ) );
		}

		public static void WriteLine( NetState state, string text )
		{
			LazyInitialize();

			if ( !m_Enabled ) return;

			try
			{
				Account acct = state.Account as Account;
				string name = acct == null ? "(UNKNOWN)" : acct.Username;
				string accesslevel = acct == null ? "NoAccount" : acct.AccessLevel.ToString();
				string statestr = state == null ? "NULLSTATE" : state.ToString();

				m_Output.WriteLine( "{0}: {1}: {2}: {3}", DateTime.UtcNow, statestr, name, text );

				string path = Core.BaseDirectory;

				Commands.CommandLogging.AppendPath( ref path, LogBaseDirectory );
				Commands.CommandLogging.AppendPath( ref path, LogSubDirectory );
				Commands.CommandLogging.AppendPath( ref path, accesslevel );
				path = Path.Combine( path, String.Format( "{0}.log", name ) );

				using ( StreamWriter sw = new StreamWriter( path, true ) )
					sw.WriteLine( "{0}: {1}: {2}", DateTime.UtcNow, statestr, text );
			}
			catch
			{
			}
		}
	}
}
